Examples

Expample 1

@Override
public void onEnable() {
    InventoryRegister.register(new CustomInventoryBuilder()
        .setRows(4) // Size in range 1-6.
        .setTitle("Custom Inventory")
        .setSlots(2,4,6,7,8,9,10,11,12,13) // Set work slots (These slots will execute the logic of "SlotManager").
        .setSlotManager(SlotManager.class) // This is "SlotManager".
        .build());
}

public void foo(Player player) {
    player.openInventory(InventoryRegister.get("Custom Inventory").asInventory());
}

Expample 2

@Override
public void onEnable() {
    InventoryRegister.register(new CustomInventoryBuilder()
        .setType(InventoyType.DROPPER) // setRows - excessive.
        .setTitle(ChatColor.WHITE + "\uF808\uE001\uF828Custom Inventory") // Custom texture of inventory (need resourcepack).
        .setSlots(4,5,6) // Set work slots (These slots will execute the logic of "SlotManager").
        .setSlotManager(SlotManager.class) // This is "SlotManager".
        .build());
}

public void foo(Player player) {
    player.openInventory(InventoryRegister.get("Custom Inventory").asInventory());
}